[5] From 1964, Arnold Schmidt (Arnold Alfred Schmidt) had several solo exhibitions of his large, black and
white shaped optical paintings exhibited at the Terrain Gallery in New York.
Formally, Sayer elicits the sensation of a perceptual shift using
optical illusions: the forms within his black and
white paintings emerge because of reification, an aspect of perception that allows us recognize a line due to the careful positioning of disparate
shapes.